KR101087123B1 - Transmitter, receiver, systm and method for offerring traffic information using mobile communication neteork - Google Patents

Abstract

The present invention discloses a traffic information transmitter, a receiver, a system, and a traffic information providing method using a mobile communication network to provide traffic information with a minimum transmission capacity. The traffic information transmitter according to the present invention performs traffic information transmission protocol processing after receiving traffic information, classifies each block by link, and blocks IDs, start link IDs, number of transmission links, and number of transmission links from the start link. Generate block traffic information having a speed value group that sequentially includes a speed value for each link corresponding to and generate traffic information guide data by sequentially arranging the generated block traffic information to have a preset data transmission amount A server protocol processing unit for outputting; a server storage unit storing name information for each block and link; and a communication unit for communicating with the outside; and transmitted through a mobile communication network to a terminal mounted in a vehicle Reducing the amount of data in traffic information prevents waste of wireless communication resources and improves data transmission efficiency. This provides the effect of increasing the traffic volume of information transmitted per unit time.

Description

Traffic information transmitter, receiver, system and traffic information providing method using mobile communication network {TRANSMITTER, RECEIVER, SYSTM AND METHOD FOR OFFERRING TRAFFIC INFORMATION USING MOBILE COMMUNICATION NETEORK}

The present invention relates to a traffic information transmitter, a receiver, a system, and a traffic information providing method using a mobile communication network to provide traffic information with a minimum transmission capacity.

Recent advances in telematics technology have made it easier for passengers to get the information they need from a terminal in a moving vehicle. In particular, the traffic information provided in real time through the mobile (wireless) communication network is very useful to the driver.

Such traffic information providing service basically transmits data on the link (section of road consisting of start node and end node) and vehicle speed on the link to the terminal of the vehicle occupant through the mobile communication network. By giving.

1 shows a conventional traffic information transmission data protocol used at this time.

The protocol 10a shown in FIG. 1A repeats the ID and speed of the link by the total number of links. The protocol 10b shown in FIG. 1B shows the ID and forward speed of the link. And repeating the reverse speed by 1/2 of the total number of links.

In the above-described prior art, since each link ID must be transmitted, the amount of data increases, thereby occupying a large amount of radio resources for wireless transmission of traffic information, thereby lowering the efficiency of data transmission rate, thereby increasing the burden on the communication network. Has

Therefore, in order to provide more traffic information to drivers more often, a protocol for compressing and transmitting the same traffic information data with a smaller capacity is required to reduce the burden on the communication network.

The present invention for solving the above problems of the prior art, to provide traffic information traffic information using a mobile communication network to reduce the amount of data transmitted wirelessly without loss of traffic information, and to reduce the burden on the communication network It is an object to provide a transmitter, a receiver, a system and a method.

The traffic information providing transmitter using the mobile communication network of the present invention for achieving the above object, after receiving the traffic information, performs the traffic information transmission protocol processing to classify by link for each block, block ID, start link ID for each classified block Generate block traffic information having a speed value group sequentially comprising the number of transport links and the number of transport links corresponding to the number of transport links from the start link, and sequentially generate the generated block traffic information to have a preset data transmission amount. And a server protocol processing unit for generating and outputting traffic information guide data by arranging the data; and a server storage unit for storing the block and link name information; and a communication unit for communicating with the outside. .

Traffic information providing receiver using a mobile communication network of the present invention for achieving the above object, a wireless communication unit for receiving a radio signal; and traffic information guide data included in the received radio signal and block and link stored in the terminal storage unit A terminal protocol processing unit for extracting traffic information by reverse traffic information transmission protocol processing using name information; a terminal storage unit storing name information for each block and link; and outputting the traffic information visually or audibly It is configured to include an output unit.

Traffic information providing system using a mobile communication network of the present invention for achieving the above object, performs traffic information transmission protocol processing on the received traffic information to classify by link for each block, block ID, start link ID for each classified block And generating block traffic information having a speed value group sequentially comprising the number of transmission links corresponding to the number of transmission links from the number of transmission links and the starting link, and sequentially generating the generated block traffic information to have a predetermined data transmission amount. A traffic information transmitter for generating and outputting traffic information guide data to the mobile communication network; and extracting and outputting traffic information by performing reverse traffic information transmission protocol processing on the traffic information guide data transmitted through the mobile communication network. Traffic information terminal; characterized in that comprises a.

In order to achieve the above object, there is provided a traffic information providing method using a mobile communication network according to the present invention, comprising: a traffic information receiving step in which a traffic information transmitter receives traffic information from the outside; A protocol processing step of generating traffic information guide data having a speed value group in which block IDs for each block, link IDs for each block, starting link IDs, number of transmission links, and speeds for each transmission link are sequentially arranged; and the protocols. A terminal transmission step of transmitting the traffic information guide data generated in the processing step to the traffic information terminal through the mobile communication network; and performing a reverse traffic information transmission protocol processing on the traffic information guide data transmitted through the mobile communication network to provide traffic information. And a reproduction step of outputting the extracted data.

The present invention reduces the amount of data of traffic information transmitted through a mobile communication network to a terminal mounted on a vehicle by providing only the link ID start information, the number information, and the traffic information for each link, without providing the link ID by link. Provides the effect of preventing waste of wireless communication resources.

In addition, the present invention provides an effect of increasing the amount of traffic information transmitted in a unit time by improving the data transmission efficiency by reducing the amount of traffic for providing traffic information.

1 is a view showing a traffic information transmission protocol structure of the prior art;
2 is a diagram illustrating an example of a block configuration conceptually divided for implementing a traffic information transmission protocol of the present invention;
3 is a view showing a traffic information transmission protocol structure according to an embodiment of the present invention;
4 is a diagram illustrating a structure of traffic information guide data transmitted by the traffic information transmission protocol of FIG. 3;
5 is a block diagram of a traffic information providing system according to an embodiment of the present invention;
6 is a functional block diagram of a traffic information providing server 100 of the system of FIG.
7 is a functional block diagram of a traffic information terminal 130 of the system of FIG.
8 is a flowchart showing a process of the traffic information providing method of the present invention.

Hereinafter, with reference to the accompanying drawings showing a preferred embodiment of the present invention will be described in more detail the present invention.

In the description of the embodiment of the present invention, traffic information provided by a traffic information provider such as Korea Expressway Corporation is referred to as 'traffic information', and traffic information processed by a traffic information transmission protocol for transmission of traffic information according to the present invention is referred to. It is called 'traffic information guide data'.

FIG. 2 is a diagram illustrating an example of a block configuration conceptually divided for implementing a traffic information protocol of the present invention, FIG. 3 is a diagram showing a structure of a traffic information transmission protocol according to an embodiment of the present invention, and FIG. 4 is FIG. FIG. 2 is a diagram showing the structure of traffic information guide data for block 2 of FIG. 2 having an ID 001 transmitted by a traffic information transmission protocol of FIG.

In order to apply the traffic information transmission protocol of the present invention as shown in FIG. 2, the area to which traffic information is guided is divided into blocks 2 including a plurality of links 10000 to 10011.

The block 2 may be transmitted in one cycle when one base station 120 (refer to FIG. 5) is composed of one cell 70 in charge of communication or when traffic information guide data is transmitted using a mobile communication network. Various methods may be divided, such as being divided into regions corresponding to the amount of data transmission. In this case, the data transmission period is set according to the characteristics of the mobile communication network.

The links 10000 to 10011 are the average movement of the vehicle according to the road information in the divided block 2 or the orientation (east, west, south, north, etc.) in the area divided into a plurality of blocks within the block 2. Can be defined as speed. The links 10000 to 10011 may be configured as bidirectional links or unidirectional links. In the case of the bidirectional links, the two lanes of the actual road may be identified by giving separate IDs. In the case of the unidirectional link, the ID and speed are given assuming that the vehicle moves in the unidirectional direction. The circled numbers in FIG. 2 represent the vehicle movement speed values of each link.

In the embodiment of the present invention, the ID of the block 2 and the links 10000 to 10011 will be described using the standard node / link ID system of the Ministry of Construction and Transportation. The standard system of the Ministry of Construction and Transportation has a three-digit regional code, a five-digit serial number and a two-digit extension. In the case of Figure 2, the three-digit regional code is used as the ID of the block as the city and district units, and the five-digit serial number is used as the ID of the link. The two-digit extension is not used. Therefore, in FIG. 2, the ID of the block 2 is 001, and the link divided in the block 2 is assigned a serial number of 10000 to 10011 so that each link is uniquely identified in the plurality of blocks. . In FIG. 2, each of the links 10000 to 10011 is illustrated as intervals between rectangular sections for convenience of description, and described as a road having a unidirectional movement. In addition, in FIG. 2, each link is demonstrated using the each link ID 10000-10011 as the code | symbol which shows each link. However, the link may indicate bidirectional vehicle movement. In this case, although not shown in the drawing, the progress direction of each link may be classified by assigning identifiers such as a and b to the link ID.

The block and link correspond to the district name and the divided region name or road name in the region name. The IDs and names of these blocks and links are stored in a database.

As described above, the area to be transported is divided into blocks and links, and the ID and name information of the blocks and links are stored in a database in correspondence with each other. The traffic information to be guided is processed.

As shown in FIG. 3, the structure of the traffic information transmission protocol 10 includes first to nth block traffic information 11 and 12 of first to nth blocks, and each block traffic information 11 and 12 A group of speed values that sequentially includes respective speed values corresponding to the block ID 20, the start link ID 30, the number of transmission links 40, and the number of transmission links 40 from the start link ( 50).

FIG. 4 shows the data structure of the first block traffic information 11 and 12 when the traffic information transmission protocol 10 is applied with the block 2 having the ID 001 of FIG. 2 as the first block traffic information 11. Indicates. That is, the first block traffic information 11 having the ID 001 of FIG. 4 is 001 as the block ID 20, 10000 as the start link ID 30, and the number of transmission links 40 is 12, respectively. The value is configured to form the velocity value group 50. That is, the first block traffic information 11 for the block 2 of FIG. 2 indicates that the links having IDs 10000 to 10011 in the block of ID 001 are 40km / h, 35km / h, 30km / h, 15km / h, 10 km / h, 10 km / h, 5 km / h, 10 km / h, 5 km / h, 45 km / h, 45 km / h, and 60 km / h.

FIG. 5 is a block diagram of a traffic information providing system according to an exemplary embodiment of the present invention. FIG. 6 is a block diagram of a traffic information providing server 100 of the system of FIG. 5, and FIG. It is a functional block diagram of the traffic information terminal 130.

Traffic information guide system (1) in the case of being implemented to be divided into a block (2) comprising a plurality of links (10000 ~ 10011), and to transmit using the traffic information transmission protocol 10 as shown in FIG. 5, the traffic information providing server 100, the traffic information broadcasting server 110, the base station 120, and a traffic information terminal 130 mounted on a vehicle are configured.

The traffic information providing server 100 converts the received traffic information into a traffic information transmission protocol structure and then provides the traffic information broadcasting server 110 to the traffic information broadcasting server 110.

It comprises a server protocol processing unit 101, a server storage unit 102 for storing block 2 and name information for each of the links 10000 to 10011, and a communication unit 103 for communicating with the outside.

The server protocol processing unit 101 receives traffic information provided by a traffic information provider such as Korea Expressway Corporation and performs traffic information transmission protocol to classify by link (10000 to 10011) for each block (2). Speed value group 50 that sequentially includes respective speed values corresponding to the block ID 20, the start link ID 30, the number of transmission links 40, and the number of transmission links 40 from the starting link for each block. Generates block traffic information (11, 12) having, and sequentially generates the generated block traffic information (11, 12) to have a predetermined data transmission amount to generate traffic information guide data and output to the communication unit 103 do.

The server storage unit 102 is a block (2) and link (10000) so that the server protocol processing unit 101 can generate traffic information guide data by the traffic information transmission protocol processing traffic information received from the Korea Highway Corporation, etc. Name information is stored.

The communication unit 103 is configured to communicate with a traffic information provider server, such as the Korea Expressway Corporation server or traffic information broadcasting server 110.

 The traffic information providing server 100 is an embodiment of the traffic information transmitter of the present invention.

The traffic information broadcasting server 110 (see FIG. 5) transmits the traffic information guide data structured by the traffic information transmission protocol to the base station 120 for each cell 70.

The base station 120 (refer to FIG. 5) converts the traffic information guide data into a radio signal when the traffic information guide data generated by the traffic information transmission protocol processing is received from the traffic information broadcast server 110. Send it out.

The traffic information terminal 130 is installed in a vehicle running in the area of the cell 70 that the base station 120 is in charge of and receives the traffic information guide data and then receives block IDs for each block traffic information 11 and 12. 20), after extracting the speed value group 50 including the respective speed values corresponding to the number of transmission links 40 from the start link ID 30, the number of transmission links 40, and the starting link, each link Visually or audioly output the corresponding name information.

To this end, the traffic information terminal 130, as shown in Figure 7, the radio communication unit 133 for receiving a radio signal transmitted from the base station 120, and the traffic information guide data and the terminal included in the received radio signal Terminal protocol processing unit 131 for extracting traffic information by performing reverse traffic information transmission protocol processing using block 2 stored in storage unit 132 and name information for each of links 10000 to 10011, and block 2 And a terminal storage unit 132 for storing name information for each link 10000 to 10011, a display unit 134 for visually outputting traffic information, and an audio unit 135 for audibly outputting traffic information. It is composed. The display unit 134 and the audio unit 135 are exemplary embodiments of the output unit of the present invention.

The traffic information terminal 130 having the above configuration may be implemented as a mobile communication terminal such as a navigator mounted on a vehicle, a PDA, a mobile phone, etc. possessed by the vehicle driver. The traffic information terminal 130 having the above-described configuration extracts the traffic information by performing the reverse traffic information transmission protocol processing, and outputs the traffic information to the display unit 134 for display or output through the audio unit 135. This allows the driver of the vehicle to check remote traffic information.

The traffic information terminal 130 is an embodiment of the traffic information guide receiver of the present invention.

8 is a flowchart showing a process of the traffic information providing method of the present invention.

As shown in FIG. 8, when performing traffic information according to the present invention, the traffic information providing server 100 receives traffic information from a traffic information provider such as Korea Expressway Corporation (S10).

After receiving the traffic information, the traffic information providing server 100 classifies the received traffic information by block (2) and by link (10000 to 10011), and then blocks ID by block (20) and start link ID (30). ), Traffic information transmission protocol processing for generating traffic information guide data having the number of transmission links 40 and the speed value group 50 for each transmission link is performed (protocol processing step, S20).

The traffic information guide data generated in the protocol processing step (S20) is converted into a radio signal via the traffic information broadcasting server 110 and the base station 120, and then inside the cell 70 controlled by the corresponding base station 120. It is transmitted to the traffic information terminal 130 that is located inside the vehicle that is running (terminal transmission step, S30).

The traffic information terminal 130 receiving the traffic information guide data transmitted from the base station 120 processes the reverse traffic information transmission protocol by using the block 2 and the link 10000 to 10011 information stored in the terminal storage unit 132. After the traffic information is generated, the display unit 134 outputs the traffic information through the display unit 134 or the audio unit 135 (playback step S40).

10: traffic information transmission protocol, 11, 12: block traffic information data, 20: block ID, 30: start link ID, 40: number of transmission links, 50: speed value group, 100: traffic information providing server, 101: server protocol Processing unit, 102: server storage unit, 103: communication unit, 130: traffic information terminal, 131: terminal protocol processing unit, 132: terminal storage unit, 133: wireless communication unit, 134: display unit, 135: audio unit, 70: cell

Claims (4)

delete delete After receiving the traffic information, the traffic information transmission protocol process is performed to classify by link for each block, and the speed of each link corresponding to the number of block IDs, start link IDs, transport links, and the number of transport links from the start link for each classified block. The server protocol processing unit and the block for generating block traffic information having a speed value group that sequentially include values, and sequentially generating the generated block traffic information so as to have a preset data transmission amount and generating and outputting traffic information guide data. A traffic information transmitter including a server storage unit storing name information for each link and a communication unit outputting the traffic information guide data through a mobile communication network; And
A terminal for extracting traffic information by a wireless communication unit for receiving the traffic information guide data through a mobile communication network and a reverse traffic information transmission protocol process using block information and name information for each link stored in the received traffic information guide data and the terminal storage unit. Traffic information terminal comprising a protocol processing unit, a terminal storage unit for storing the block and link name information, and an output unit for outputting the traffic information visually or audibly; system.
After receiving the traffic information, the traffic information transmission protocol process is performed to classify by link for each block, and the speed of each link corresponding to the number of block IDs, start link IDs, transport links, and the number of transport links from the start link for each classified block. The server protocol processing unit and the block for generating block traffic information having a speed value group that sequentially include values, and sequentially generating the generated block traffic information so as to have a preset data transmission amount and generating and outputting traffic information guide data. A traffic information transmitter including a server storage unit storing name information for each link and a communication unit outputting the traffic information guide data through a mobile communication network; And
A terminal for extracting traffic information by a wireless communication unit for receiving the traffic information guide data through a mobile communication network and a reverse traffic information transmission protocol process using block information and name information for each link stored in the received traffic information guide data and the terminal storage unit. The traffic information providing system includes a traffic information terminal including a protocol processing unit, a terminal storage unit storing name information for each block and link, and an output unit for visually or audibly outputting the traffic information. In the method for providing,
Traffic information receiving step for the traffic information transmitter to receive traffic information from the outside; And,
Traffic information having a speed value group in which the traffic information is classified by blocks and links by performing traffic information transmission protocol processing, and then block IDs by blocks, start link IDs, number of transmission links, and speed values by transmission links are sequentially arranged. A protocol processing step of generating guide data; and
A terminal transmission step of transmitting the traffic information guide data generated in the protocol processing step to a traffic information terminal through a mobile communication network;
And a reproducing step of extracting and outputting traffic information by performing reverse traffic information transmission protocol processing on the traffic information guide data transmitted through the mobile communication network.

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